Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2009-09-10
Mon. Not. R. Astron. Soc. 397, 1215-1127 (2009)
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
13 pages, 9 figures, Publicated in MNRAS. 43 pages in arXiv
Scientific paper
10.1111/j.1365-2966.2009.14988.x
We present evidence for interaction between the supernova remnant (SNR) G357.7+0.3 and nearby molecular clouds, leading to the formation of wind-swept structures and bright emission rims. These features are not observed at visual wavelengths, but are clearly visible in mid-infrared (MIR) mapping undertaken using the Spitzer Space Telescope (SST). Analysis of one of these clouds, the bright cometary structure G357.46+0.60, suggests that it contains strong polycyclic aromatic hydrocarbon (PAH) emission features in the 5.8 and 8.0 microns photometric bands, and that these are highly variable over relatively small spatial scales. This source also appears to contain a YSO within the bright rim structure, with a steeply rising spectrum between 1.25 and 24 microns. Finally, it is noted that a further, conical emission region appears to be associated with the Mira V1139 Sco, and it is suggested that this may represent the case of a Mira outflow interacting with a SNR.
Perez-Grana J. A.
Phillips J. P.
Ramos-Larios Gerardo
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